The ZXHF-K721M+ from Mini Circuits is a RF High Pass Filter with Frequency 700 to 5000 MHz, Insertion Loss 1.9 to 2.7 dB, Power 1.58 W, Rejection 15 to 35 dB, Lower Rejection 15 to 35 dB @DC to 450 MHz. Tags: Module with Connectors, Reflectionless Filter. More details for ZXHF-K721M+ can be seen below.